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9th Annual Smithsonian Magazine Photo Contest Travel
Tourists about to enter the Underground River found inside a limestone cave in Palawan, Philippines

Tourists about to enter the Underground River found inside a limestone cave in Palawan, Philippines

Photo Detail
Date Taken: 05.2011
Date Uploaded: 06.2011
Photo Location: Philippines
Camera: NIKON D90
Copyright: © Maria Karla Muriel Sajona